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Circuit substrate and display device

a technology of display device and circuit substrate, which is applied in the direction of electrical apparatus construction details, instruments, optics, etc., can solve the problems of exposed part of aluminum film becoming corroded, and achieve the effect of reducing the frame area and reducing the deterioration of transistor characteristics and fine circuit wiring

Active Publication Date: 2011-07-14
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0047]According to a configuration of a circuit substrate of the present invention, a transistor and / or fine circuit wiring are disposed side by side with an external connection terminal. Consequently, the influence that the pressure applied when pressure-bonding an external member to the external connection terminal might have on the transistor and / or fine circuit wiring can effectively be reduced. As a result, it is possible to minimize the deterioration of the characteristics of the transistor and the fine circuit wiring. Also, when a circuit substrate of the present invention is used in a display device, for example, the frame area can be reduced without deteriorating the characteristics of the transistor and fine circuit wiring.

Problems solved by technology

When this wiring is extended to the panel exterior to be used as an external connection terminal, an exposed part of the aluminum film can become corroded.

Method used

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Examples

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embodiment 1

[0058]FIG. 1 is a schematic plan view of a circuit substrate according to Embodiment 1. The circuit substrate according to Embodiment 1 is a first circuit substrate of the present invention in the respect that it includes a transistor substrate having a transistor and an external connection terminal; is a second circuit substrate of the present invention in the respect that it includes a circuit wiring substrate having a circuit wiring with a fine circuit wiring and an external connection terminal; and is a third circuit substrate of the present invention in the respect that it includes a transistor circuit substrate having a circuit wiring, a transistor, and an external connection terminal.

[0059]As shown in FIG. 1, the circuit substrate of Embodiment 1 is composed of a display region 90 and a peripheral circuit region 92. The display region 90 is composed of a pixel region 91 and a seal region 93 surrounding the pixel region 91. In the circuit substrate of Embodiment 1, a circuit i...

embodiment 2

[0072]FIG. 4 is a schematic plan view of a circuit substrate according to Embodiment 2. The circuit substrate according to Embodiment 2 is a first circuit substrate of the present invention in the respect that it includes a transistor substrate having a transistor and an external connection terminal: is a second circuit substrate of the present invention in the respect that it includes a circuit wiring substrate having a circuit wiring with a fine circuit wiring and an external connection terminal: and is a third circuit substrate of the present invention in the respect that it includes a transistor circuit substrate having circuit wiring, a transistor, and an external connection terminal.

[0073]As shown in FIG. 4, the circuit substrate according to Embodiment 2 is composed of a display region 90 and a peripheral circuit region 92. The display region 90 is composed of a pixel region 91 and a seal region 93 surrounding the pixel region 91. In the circuit substrate of Embodiment 2, a c...

embodiment 3

[0096]FIG. 6 is a schematic plan view of a circuit substrate according to Embodiment 3. The circuit substrate according to Embodiment 3 is a first circuit substrate of the present invention in the respect that it includes a transistor substrate having a transistor and an external connection terminal; is a second circuit substrate of the present invention in the respect that it includes a circuit wiring substrate having a circuit wiring with a fine circuit wiring and an external connection terminal; and is a third circuit substrate of the present invention in the respect that it includes a transistor circuit substrate having a circuit wiring, a transistor, and an external connection terminal.

[0097]As shown in FIG. 6, the circuit substrate according to Embodiment 3 is composed of a display region 90 and a peripheral circuit region 92. The display region 90 is composed of a pixel region 91 and a seal region 93 surrounding the pixel region 91. In the circuit substrate of Embodiment 3, a...

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PUM

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Abstract

Provided is a circuit substrate which can integrate circuit elements without degrading wiring characteristics, and a display device including the circuit substrate. The circuit substrate of the present invention includes a transistor substrate (10) which is a support substrate (1) having a transistor (20) and an external connection terminal (50) mounted thereon, and an external member (60) attached on the transistor substrate (10). The external member (60) is connected physically and electrically to the external connection terminal (50) through a conductive member (3), and the transistor (20) and the external connection terminal (50) are arranged side by side.

Description

TECHNICAL FIELD[0001]The present invention relates to a circuit substrate and a display device. More particularly, the present invention relates to a circuit substrate suitable for mobile devices such as a cellular phone and a display device provided with the above circuit substrate.BACKGROUND ART[0002]In recent years, for mobile electronic devices such as a cellular phone or a PDA using liquid display device, organic EL display device or the like, further size and weight reduction are desired. Accordingly, there is a trend for a smaller region around display area, i.e. narrower frame region, and vigorous development of such is underway.[0003]For thickness and cost reduction, there is an increased trend for display devices provided with a full monolithic type circuit substrate having a peripheral circuit necessary for driving, such as a driver circuit. In a display device provided with a full monolithic type circuit substrate, a circuit for driving the pixels is formed on the circui...

Claims

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Application Information

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IPC IPC(8): H05K7/00H05K1/11
CPCG02F1/13452H01L2924/1305H01L2924/14H01L2924/19041H01L2924/19043H01L2924/01029H01L2224/2939H01L2224/32148H01L2224/29455H01L24/05H01L24/06H01L24/29H01L24/32H01L24/83H01L2224/04026H01L2224/05548H01L2224/06102H01L2224/2929H01L2224/29444G02F1/1368H01L2924/1306H01L27/124H01L2224/83H01L2924/0665H01L2924/00012H01L2924/00014H01L2924/00H01L2924/15788
Inventor MORIWAKI, HIROYUKI
Owner SHARP KK